<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			table,th,td{
				border: 1px solid black;
			}
			
			table{
				/*折叠边框*/
				border-collapse: collapse;
				/*表格的宽度*/
				width: 100%;
			}
			
			th{
				/*标题高度*/
				height: 50px;
				/*表格颜色*/
				background-color: green;
				color: white;
			}
			
			td{
				/*文字对齐*/
				/* text-align: center; */
				/* 垂直对齐 */
				height: 50px;
				vertical-align: bottom;
				/*表格填充*/
				padding:15px;
			}
		</style>
	</head>
	<body>
		
		<table>
			<tr>
				<th>标题一</th>
				<th>标题二</th>
				<th>标题三</th>
			</tr>
			<tr>
				<td>1</td>
				<td>2</td>
				<td>3</td>
			</tr>
		</table>
		
	</body>
</html>